DG Nova 3 & LSI-11

From: Karl Maftoum <karlm_at_blitzen.ise.canberra.edu.au>
Date: Tue Oct 5 21:54:33 1999

On Tue, 5 Oct 1999, Pete Turnbull wrote:

> On Oct 5, 17:14, Karl Maftoum wrote:
>
> > A most interesting find was unearthed this afternoon, a DG Nova 3 with
> > it's CDC platter drive! Not knowing much about the Nova series of
> > computers, exactly what would be required to make it work?
>
> Nice find :-) I don't have any practical advice or information, though :-(

:-) There appears to be not much information about these on the 'net, were
they that common?

> As you may have discovered, the M8192 is a KDJ11-AA, ie an 11/73 processor.
> If it has -YB marked on it, it's an -AB version, which can accept an FPU,
> and if it has -YC, it should already have an FPU. M8192's were commonly
> sold as OEM boards, or as upgrades for 11/23 systems.
>
> M7546 is a TKQ50, ie the controller for a TK50 'CompacTape' cartridge
> drive.
>
> Sorry, I can't help with the CTBC card.
>
> I assume it has some memory and an SLU? And a card with a boot ROM?

The card has two roms on it marked "CPlus High" and "CPlus Low" I'm going
down to replace the supply fuse today, hopefully the damage is limited to
the two scorched resistors on the board. (not surface mount thank god!) It
does have a UART which probably indicates a SLU, i'm still baffled about
what that thing was that caused it to blow like that.

Karl
Received on Tue Oct 05 1999 - 21:54:33 BST

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